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| author | david.wu <david.wu@rock-chips.com> | 2017-02-10 18:23:49 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-03-14 14:42:21 +0100 |
| commit | 3818e4a7678ea70508b6b6e72a4cbf445e1e7dfa (patch) | |
| tree | 514df8b9dd7284814f5b283262c37f19065d1240 /drivers/pinctrl/pinctrl-rockchip.c | |
| parent | ea262ad6e4019f622f6b64dc42a8e839201b6046 (diff) | |
| download | linux-3818e4a7678ea70508b6b6e72a4cbf445e1e7dfa.tar.gz linux-3818e4a7678ea70508b6b6e72a4cbf445e1e7dfa.tar.bz2 linux-3818e4a7678ea70508b6b6e72a4cbf445e1e7dfa.zip | |
pinctrl: rockchip: Add rk3328 pinctrl support
Note, the iomux of following pins are special, need to
be recalculated specially.
- gpio2_b4
- gpio2_b7
- gpio2_c7
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-rockchip.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-rockchip.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 2b951334f224..a838c8bb3129 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -534,6 +534,49 @@ static const struct pinctrl_ops rockchip_pctrl_ops = { * Hardware access */ +static const struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = { + { + .num = 2, + .pin = 12, + .reg = 0x24, + .bit = 8, + .mask = 0x3 + }, { + .num = 2, + .pin = 15, + .reg = 0x28, + .bit = 0, + .mask = 0x7 + }, { + .num = 2, + .pin = 23, + .reg = 0x30, + .bit = 14, + .mask = 0x3 + }, +}; + +static void rk3328_recalc_mux(u8 bank_num, int pin, int *reg, + u8 *bit, int *mask) +{ + const struct rockchip_mux_recalced_data *data = NULL; + int i; + + for (i = 0; i < ARRAY_SIZE(rk3328_mux_recalced_data); i++) + if (rk3328_mux_recalced_data[i].num == bank_num && + rk3328_mux_recalced_data[i].pin == pin) { + data = &rk3328_mux_recalced_data[i]; + break; + } + + if (!data) + return; + + *reg = data->reg; + *mask = data->mask; + *bit = data->bit; +} + static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin) { struct rockchip_pinctrl *info = bank->drvdata; @@ -2722,6 +2765,31 @@ static struct rockchip_pin_ctrl rk3288_pin_ctrl = { .drv_calc_reg = rk3288_calc_drv_reg_and_bit, }; +static struct rockchip_pin_bank rk3328_pin_banks[] = { + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0), + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0), + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, + IOMUX_WIDTH_3BIT | IOMUX_RECALCED, + IOMUX_WIDTH_3BIT | IOMUX_RECALCED, + 0), + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", + IOMUX_WIDTH_3BIT, + IOMUX_WIDTH_3BIT | IOMUX_RECALCED, + 0, + 0), +}; + +static struct rockchip_pin_ctrl rk3328_pin_ctrl = { + .pin_banks = rk3328_pin_banks, + .nr_banks = ARRAY_SIZE(rk3328_pin_banks), + .label = "RK3328-GPIO", + .type = RK3288, + .grf_mux_offset = 0x0, + .pull_calc_reg = rk3228_calc_pull_reg_and_bit, + .drv_calc_reg = rk3228_calc_drv_reg_and_bit, + .iomux_recalc = rk3328_recalc_mux, +}; + static struct rockchip_pin_bank rk3368_pin_banks[] = { PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU, IOMUX_SOURCE_PMU, @@ -2827,6 +2895,8 @@ static const struct of_device_id rockchip_pinctrl_dt_match[] = { .data = (void *)&rk3228_pin_ctrl }, { .compatible = "rockchip,rk3288-pinctrl", .data = (void *)&rk3288_pin_ctrl }, + { .compatible = "rockchip,rk3328-pinctrl", + .data = (void *)&rk3328_pin_ctrl }, { .compatible = "rockchip,rk3368-pinctrl", .data = (void *)&rk3368_pin_ctrl }, { .compatible = "rockchip,rk3399-pinctrl", |